Refactor: only one instantiation of webdriver

functionnal_test.py

@@ -13,9 +13,10 @@ docs_url = f"{base_url}/docs"
 
 
 class BaseFunctionnalTestCase(unittest.TestCase):
-    def setUp(self):
-        self.driver = webdriver.Firefox()
-        self.addCleanup(self._close)
+    @classmethod
+    def setUpClass(cls):
+        cls.driver = webdriver.Firefox()
+        cls.addClassCleanup(cls.driver.quit)
 
     def test_app_homepage_is_reachale(self):
         self.driver.get(base_url)
@@ -27,7 +28,3 @@ class BaseFunctionnalTestCase(unittest.TestCase):
 
         swagger = self.driver.find_elements(By.ID, "swagger-ui")[0]
         assert swagger_header_content in swagger.text.replace("\n", "")
-
-    def _close(self):
-        if self.driver:
-            self.driver.quit()